论文部分内容阅读
目的评价S3机用镍钛器械在后牙根管预备中的临床应用效果。方法选择需要进行根管治疗的62颗后牙患牙，200个根管(弯曲度5o~30o)，随机分为两组：S3组采用S3机用镍钛器械冠向下法预备根管，K组采用手用不锈钢K锉逐步后退法预备根管，根据操作时间、约诊间痛发生率和术前、术后X线片评价临床效果。结果单个根管预备平均时间S3组与K组分别为(40.13±3.50)s，和(78.21±5.32)s(<0.05)；S3组与K组约诊间痛发生率分别为5%和17%(<0.05)；S3组较K组能更好的维持根管原有形态，预备效果较好。结论 S3机用镍钛根管预备器械在后牙根管预备成形中相对操作简便、成形好、效率高，是较理想的根管预备器械。“,”Objective To evaluate the clinical application effect of S3 machine with nickel titanium instruments in the preparation of root canal preparation. Methods Root canal treatment of 62 teeth teeth, 200 root canal (bending 5~30 degree), were randomly divided into for two groups:Group S3 by S3 machine with nickel titanium instruments crown to dismount to prepare the root canal, K group by hand with stainless steel K-file step back technique in root canal preparation, according to the rate and operation of operation time, appointment pain, postoperative X-ray evaluation of clinical effect. Results The average time of single root canal preparation was (40.13±3.50), and ( <0.05) K, and (78.21±5.32), the incidence rate of S3 was 5% and 17% ( < 0.05), and S3 group was better than K group. Conclusion S3 machine with nickel titanium root canal preparation equipment in the post root canal preparation in the relative operation is simple, forming good, high efficiency, is the ideal root canal preparation equipment.